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Time-Varying Effect of Short Selling on Market Volatility During Crisis: Evidence from COVID-19 and War in Ukraine

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  • Kwaku Boafo Baidoo

    (Mendel University in Brno, Czech Republic)

Abstract

In this paper, we empirically investigate the effect of short selling on market volatility during exogenously-induced uncertainties. Using the Covid-19 pandemic and the onset of the Russian-Ukraine Conflicts periods as event study, we employ the asymmetric EGARCH model. We show high persistence and asymmetric effects of market volatility during the pre-covid outbreak and post-covid outbreak periods. We find evidence that short selling increases market volatility during the pre-covid outbreak period while the period of the Russian-Ukraine conflict is characterized by reduced volatility. We find no evidence of short selling effect on market volatility during the post-covid outbreak period. Our findings provide significant implications for short-selling strategies during crisis periods.

Suggested Citation

  • Kwaku Boafo Baidoo, 2022. "Time-Varying Effect of Short Selling on Market Volatility During Crisis: Evidence from COVID-19 and War in Ukraine," European Journal of Business Science and Technology, Mendel University in Brno, Faculty of Business and Economics, vol. 8(2), pages 233-243.
    • Handle: RePEc:men:journl:v:8:y:2022:i:2:p:233-243
    DOI: 10.11118/ejobsat.2022.013
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    More about this item

    Keywords

    short-selling; market volatility; COVID-19; Russian-Ukraine conflict;
    All these keywords.

    JEL classification:

    • C22 - Mathematical and Quantitative Methods - - Single Equation Models; Single Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models; Diffusion Processes
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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